How much of a DOG is the Magnum .44 GP ?

Seems they were the same era as early LA . 46's . Which MIGHT BE SAID to VARY in Piston / Liner fit !

asit used or NiB ? How is the ' nip ' / ' pinch ' across T D C , please . P.M.'d be o.k.
( I dont want to end up wih THREE slack .44s ! Thanks .